Merge pull request #3910 from ahocevar/ol-ext-no-amd

Do not provide an AMD environment to ol.ext modules.

tasks/build-ext.js

@@ -50,6 +50,7 @@ function wrapModule(mod, callback) {
         '(function() {\n' +
         'var exports = {};\n' +
         'var module = {exports: exports};\n' +
+        'var define;\n' +
         '/**\n' +
         ' * @fileoverview\n' +
         ' * @suppress {accessControls, ambiguousFunctionDecl, ' +